Ecology and genomics of an important crop wild relative as a prelude to agricultural innovation

• DOI: 10.1038/s41467-018-02867-z
• Publication Date: 2018-02-07T15:47:18Z
• Authors: Eric J.B. von Wet...; Peter L. Chang; Fatma Başdemir; Noelia Carrasquil...; Lijalem Balcha Korbu; Susan M. Moenga; Gashaw Bedada; Alex Greenlon; Ken S. Moriuchi; Vasantika Singh; Matilde A. Cordeiro; Nina V. Noujdina; Kassaye Negash Di...; Syed Gul Abbas Sh...; Tsegaye Getahun; Lisa Vance; Emily Bergmann; Donna Lindsay; Bullo Erena Mamo; Emily J. Warschefsky; Emmanuel Dacosta-...; Edward Marques; Mustafa Abdullah ...; Ahmet Cakmak; Janna Rose; Andrew Migneault; Christopher P. Krieg; Sevgi Saylak; Hamdi Temel; Maren L. Friesen; Eleanor Siler; Zhaslan Akhmetov; Huseyin Ozcelik; Jana Kholova; Canan Can; Pooran Gaur; Mehmet Yildirim; Hari Sharma; Vincent Vadez; Kassahun Tesfaye; Asnake Fikre Wold...; Bunyamin Tar’an; Abdulkadir Aydogan; Bekir Bukun; R. Varma Penmetsa; Jens Berger; Abdullah Kahraman; Sergey V. Nuzhdin; Douglas R. Cook
• Keywords: 0301 basic medicine; Trait; General Physics and Astronomy; Evolutionary biology; Plant Science; Breeding; Crop; Resilient Communities; Gene; Genetic diversity; Agricultural and Biological Sciences; Domestication; Chickpea; Sociology; Symbiotic Nitrogen Fixation in Legumes; Legume Crops; 3100 Physics and Astronomy; 2. Zero hunger; Genome; Ecology; Q; Life Sciences; Genomics and Breeding of Legume Crops; Agriculture; Genomics; Biological Sciences; 1600 Chemistry; FOS: Sociology; Programming language; Sustainability; Seeds; Community Health; Human Ecology; Crop Wild Relatives; Gene pool; Genome, Plant; Biotechnology; Crops, Agricultural; 571; 1300 Biochemistry; Genotype; Science; Population; Veterinary and Food Sciences; Genetics and Molecular Biology; Crops; Environment; 333; Article; 03 medical and health sciences; Genetics; Place and Environment; Nature and Society Relations; Plant Growth; Genetic variation; Agroforestry; Innovation; Biology; Demography; Agricultural; Human Genome; Genetic Variation; Genetics and Genomics; General Chemistry; Plant; 15. Life on land; Horticultural Production; Computer science; Sustainable Agriculture; Cicer; Plant Breeding; FOS: Biological sciences; General Biochemistry; Genetic drift; Genetics and Breeding of Cowpea

AbstractDomesticated species are impacted in unintended ways during domestication and breeding. Changes in the nature and intensity of selection impart genetic drift, reduce diversity, and increase the frequency of deleterious alleles. Such outcomes constrain our ability to expand the cultivation of crops into environments that differ from those under which domestication occurred. We address this need in chickpea, an important pulse legume, by harnessing the diversity of wild crop relatives. We document an extreme domestication-related genetic bottleneck and decipher the genetic history of wild populations. We provide evidence of ancestral adaptations for seed coat color crypsis, estimate the impact of environment on genetic structure and trait values, and demonstrate variation between wild and cultivated accessions for agronomic properties. A resource of genotyped, association mapping progeny functionally links the wild and cultivated gene pools and is an essential resource chickpea for improvement, while our methods inform collection of other wild crop progenitor species.